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EP 4 066 300 A1

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(43) Date of publication: 05.10.2022 Bulletin 2022/40 (21) Application number: 19827916.8 (22) Date of filing: 26.11.2019

(51) International Patent Classification (IPC):  H01M 8/04014(2016.01) H01M 8/2484(2016.01) H01M 8/14(2006.01) H01M 8/2475(2016.01) H01M 8/249(2016.01) (52) Cooperative Patent Classification (CPC): H01M 8/04014; H01M 8/2475; H01M 8/2484; H01M 8/249; H01M 2008/147; Y02E 60/50 (86) International application number: PCT/US2019/063333 (87) International publication number: WO 2021/107933 (03.06.2021 Gazette 2021/22)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicants: ExxonMobil Technology and Engineering Company Spring, TX 77389 (US) Fuelcell Energy, Inc. Danbury, CT 06810 (US)	(72) Inventors: DAVIS, Keith E. Southbury, Connecticut 06488 (US) HERSHKOWITZ, Frank Basking Ridge, New Jersey 07920 (US) HAN, Lu Beaumont, Texas 77706 (US) SUTTON, Clay R. Pittstown, New Jersey 08867 (US) RUBAS, Paul J. Milford, New Jersey 08848 (US) (74) Representative: Abel & Imray LLP  Westpoint Building James Street West Bath BA1 2DA Bath BA1 2DA (GB)